The survey on “Facts of Facebook usage among Can Tho University students” was carried out to have a closer look at Facebook usage among students of Can Tho University and how much time they spent on the social network at the expense of time for studying. Based on that, the authors proposed solutions to use Facebook effectively while at the same time to reduce its negative impacts. The study took surveys on students who attended regular courses at Can Tho University. In total, there were 412 students engaging in the study. The results found out that most students used Facebook during class time, accounted for 77.3%. The study also showed that Facebook somehow affected study performance of students as without Facebook, 82.1% of students spent their free time on study while with using Facebook, the ratio went down to 56.6%. However, most students suggested that with proper usage, Facebook did have its positive impacts as it was a good channel to share information of extra activities of class or faculty to students. Also in the study, the authors proposed some solutions for students to take full advantages of Facebook.